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Finding the Fourth Proportional to 8,492.04, 12,738.65 and 3,556.71

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Solution

The fourth proportional to 8,492.04, 12,738.65 and 3,556.71 is: 5,335.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,492.04 : 12,738.65 = 3,556.71 : x
  2. Step 2: Convert to fraction form
    8,492.04/12,738.65 = 3,556.71/x
  3. Step 3: Cross multiply
    8,492.04x = 12,738.65 × 3,556.71
  4. Step 4: Simplify right side
    8,492.04x = 45,307,666.06
  5. Step 5: Solve for x
    x = 45,307,666.06/8,492.04
  6. Step 6: Final answer
    x = 5,335.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.